Moving Blocks Between Cards Should not Duplicate#48

Currently, moving blocks between cards duplicates the block, instead of removing it from the source card.

would it be better to have this as a key-option .. default is to move (drag) but shift-drag to copy (if the copy were to be used as basis of a changed / different note whilst wanting to leave the original untouched)

Really missing this feature as well. Are there difficulties to implement this? Hope to see it soon. All the best!